Change over all makefiles to use C99 standards mode, rather than C99 + GNU Extensions.

Bootloaders/CDC/makefile

@@ -176,7 +176,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Bootloaders/DFU/makefile

@@ -177,7 +177,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/AudioInput/makefile

@@ -179,7 +179,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/AudioOutput/makefile

@@ -179,7 +179,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/DualVirtualSerial/makefile

@@ -180,7 +180,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/GenericHID/makefile

@@ -181,7 +181,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/Joystick/makefile

@@ -181,7 +181,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/Keyboard/makefile

@@ -181,7 +181,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/KeyboardMouse/makefile

@@ -181,7 +181,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/MIDI/makefile

@@ -179,7 +179,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/MassStorage/makefile

@@ -183,7 +183,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/MassStorageKeyboard/makefile

@@ -193,7 +193,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/Mouse/makefile

@@ -181,7 +181,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources
@@ -218,7 +218,6 @@ CFLAGS += -fshort-enums
 CFLAGS += -fno-strict-aliasing
 CFLAGS += -Wall
 CFLAGS += -Wstrict-prototypes
-#CFLAGS += -mshort-calls
 CFLAGS += -Wundef
 #CFLAGS += -fno-unit-at-a-time
 #CFLAGS += -Wunreachable-code

Demos/Device/ClassDriver/RNDISEthernet/Lib/Ethernet.h

@@ -85,12 +85,7 @@
 		{
 			MAC_Address_t Destination; /**< Physical MAC address of the packet recipient */
 			MAC_Address_t Source; /**< Physics MAC address of the packet source */
-			
-			union
-			{
-				uint16_t  EtherType; /**< Ethernet packet sub-protocol type, for Ethernet V2 packets */
-				uint16_t  Length; /**< Ethernet frame length, for Ethernet V1 packets */
-			};
+			uint16_t      EtherType; /**< Ethernet packet sub-protocol type, for Ethernet V2 packets */
 		} Ethernet_Frame_Header_t;
 		
 	/* External Variables: */

Demos/Device/ClassDriver/RNDISEthernet/makefile

@@ -190,7 +190,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/VirtualSerial/makefile

@@ -180,7 +180,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/ClassDriver/VirtualSerialMouse/makefile

@@ -182,7 +182,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/Incomplete/Sideshow/makefile

@@ -185,7 +185,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/LowLevel/AudioInput/makefile

@@ -179,7 +179,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources

Demos/Device/LowLevel/AudioOutput/makefile

@@ -179,7 +179,7 @@ EXTRAINCDIRS = $(LUFA_PATH)/
 #     gnu89 = c89 plus GCC extensions
 #     c99   = ISO C99 standard (not yet fully implemented)
 #     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
+CSTANDARD = -std=c99
 
 
 # Place -D or -U options here for C sources